On Sun, Feb 13, 2005 at 09:31:19AM -0800, David Wheeler wrote: > On Feb 13, 2005, at 5:24 AM, Michael A Chase tech wrote: > > >Does a handle know its cached?
No. > >Maybe the answer it to not allow changing attributes on a cached handle. > > That's already the rule and would not change. Er, that's news to me. Different applications use handle caching for different reasons. For many changing attribute values is okay. But I can see value in making it easy to warn or die on attribute changes. If we had per-handle-per-method callbacks (as previously discussed) then it would be easy to add a callback for STORE to implement that. That's the only practical way to do it without modifying all drivers. Tim.
